Peter Schulte et al. The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary // Science 327, 2010. P. 1214–1218.
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Chris Norris. With Neither Bang, Nor a Whimper. Blog entry. Prerogative of Harlots, April 28, 2009. URL: http://paleocoll.blogspot.com/2009/04/with-neither-bang-nor-whimper.html
